HTML Checking for Large Sites

Rocket Validator automatically checks your pages on the W3C Validator.

A document must not include more than one “meta” element with a “charset” attribute.

The <meta charset> tag, used to define the character encoding, must appear only once in a document, within the <head> section.

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Related W3C validator issues

Still checking your large sites one page at a time?

Save time using our automated web checker. Let our crawler check your web pages on the W3C Validator.